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Description of Business and Summary of Significant Accounting Policies - Additional Information (Details) $ / shares in Units, $ in Millions |  |  |  | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 26, 2024 USD ($) shares | Jun. 28, 2024 USD ($) $ / shares shares | Jun. 26, 2024 $ / shares shares | Sep. 30, 2024 $ / shares shares | Dec. 31, 2023 $ / shares shares | Jun. 30, 2024 USD ($) | Jun. 25, 2024 $ / shares | Jun. 01, 2024 shares
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Common shares, shares issued |  |  |  | 128,313,144 | 109,505,150 |  |  |
Stockholders' Equity Note, Stock Split, Conversion Ratio |  |  | 0.03 |  |  |  |  |
Forward stock split description |  |  | a 30-for-1 forward stock split |  |  |  |  |
Common shares, par value | $ / shares |  |  | $ 0.0001 | $ 0.0001 | $ 0.0001 |  | $ 0.01 |
Capital stock authorized |  |  | 2,100,000,000 |  |  |  |  |
Common shares, shares authorized |  |  | 2,000,000,000 | 2,000,000,000 | 2,000,000,000 |  |  |
Preferred stock, shares authorized |  |  | 100,000,000 | 100,000,000 | 100,000,000 |  |  |
Preferred stock, par value | $ / shares |  |  | $ 0.0001 | $ 0.0001 | $ 0.0001 |  |  |
Preferred stock, shares issued |  |  |  | 0 | 0 |  |  |
Preferred stock, shares outstanding |  |  |  | 0 | 0 |  |  |
IPO |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Shares of common stock |  | 15,000,000 |  |  |  |  |  |
Offering price | $ / shares |  | $ 21 |  |  |  |  |  |
Net proceeds | $ |  | $ 281.7 |  |  |  |  |  |
Underwriting discounts and commissions | $ |  | 22.1 |  |  |  |  |  |
Offering costs | $ |  | $ 11.2 |  |  |  |  |  |
IPO | Chief Executive Officer |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Accrued bonus | $ |  |  |  |  |  | $ 30.0 |  |
IPO | NAVER U.Hub Inc |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Shares of common stock |  | 2,380,952 |  |  |  |  |  |
Offering price | $ / shares |  | $ 21 |  |  |  |  |  |
Net proceeds | $ |  | $ 50.0 |  |  |  |  |  |
IPO | Maximum |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Additional shares of common stock |  | 2,250,000 |  |  |  |  |  |
Over-Allotment Option |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Shares of common stock | 1,371,549 |  |  |  |  |  |  |
Net proceeds | $ | $ 26.8 |  |  |  |  |  |  |
Three Payment Gateways Companies | Customer Concentration Risk | Receivables |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 57.80% | 49.60% |  |  |
Three Borrowers | Customer Concentration Risk | Loans Receivables |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Concentration risk, percentage |  |  |  | 89.20% | 96.60% |  |  |
Wattpad |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Percentage of ownership acquired |  |  |  |  |  |  |  | 100.00%
Common shares, shares issued |  |  |  |  |  |  |  | 12,413,458

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